Mathematics: Solve the equation, , using the quadratic formula. question 4 options: x = -1 or x = -1 or x = 2 x = 1 or x = 1 or

Solve the equation, , using the quadratic formula.

Ответ:

tdahna0403

14.01.2022

Mathematics

$x=1\ or\ x=-\frac{1}{2}$

Step-by-step explanation:

To solve the given quadratic equation 2x^2-x-1=0 you can apply the Quadratic formula, which is shown below:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where:

$a=2\\b=-1\\c=-1$

Therefore, when you substitute values into the Quadratic formula shown above, you obtain the following solution:

$x=\frac{-(-1)\±\sqrt{(-1)^2-4(2)(-1)}}{2*2}$

$x=1\ or\ x=-\frac{1}{2}$

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Ответ:

tomoetoes6910

20.11.2022

Mathematics

DNA fingerprinting or DNA profiling technique

Explanation:

The DNA sequence is used in forensics to find the identity of a skeleton. A DNA profile is generated from the skeleton remains. The biological materials that can withstand exposure to intense environmental conditions such as heat, a significant amount of time passes are teeth and skeleton. So large quantities of DNA can be purified from these hard tissues.

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Solve the equation, , using the quadratic formula.
question 4 options:

x = -1 or

x = -1 or x = 2

x = 1 or

x = 1 or

Ответ:

Ответ:

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